This crystal radio is made in Italy.
RUMA was a little factory founded in the 20s from the Romagnoli brothers.
Romagnoli brothers were born in Bologna in the early 1900s.
In the 20s they lived in Faenza (RA) where they were friendly called
At the end of the 20s Romagnoli brothers moved to Milan where they
founded a little firm focused in marketing and production of radio
The firm was named “RUMA” to remember the Faenza friends.
After 1945 RUMA manufactured also a little tube radio which today is very
In the 50s the technology development and the discover of the
semiconductors made RUMA chose
between enlarging the firm or standing by.
For this reasons RUMA activity in the radio manufacturing area was